Monte Artxanda is a great option if you're looking for a nice view of the city. However, it is slightly hazy up there. A lot of people take the funicular up to the top which I believe is 0.90€ one way, however I decided to pull up directions on Google maps and take the walk. I personally recommend the walk as about 3/4 of the way up the mountain, there's better views then there would be from the top because of how hazy it is. I also wouldn't consider it a difficult hike, as you're mostly just walking through residential streets and I believe it took me about 40 minutes to get up, starting at the funicular. At the top of the mountain in the look out, there's park benches and a fountain so I would recommend packing a lunch and eating it at the top read more